STUDY ON CHARACTERISTICS OF STRENGTH AND ABRASION RESISTANCE OF PAVEMENT CONCRETE USING VARIOUS KIND OF COARSE AGGREGATE

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  • TAKINAMI Yuto
    一般社団法人セメント協会研究所 コンクリート研究グループ
  • KOYANAGAWA Masasi
    東京農業大学 地域環境科学部 生産環境工学科
  • MORIHAMA Kazumasa
    独立行政法人土木研究所 材料資源研究グループ
  • TSUNEMATSU Tadashi
    日本道路株式会社技術研究所 第一研究室
  • ISHIDA Masao
    太平洋セメント株式会社 中央研究所 第2研究部 コンクリート舗装技術チーム

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Other Title
  • 各種粗骨材を用いた舗装コンクリートの強度特性及び耐摩耗性に関する研究
  • カクシュ ソコツザイ オ モチイタ ホソウ コンクリート ノ キョウド トクセイ オヨビ タイマモウセイ ニ カンスル ケンキュウ

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The life cycle cost of concrete pavement is superior to it's of asphalt pavement, because of high durability of concrete pavement. Therefore the concrete pavement is must be spread from the viewpoint of social overhead capital maintenance cost reduction. Recently, the natural aggregate dries up, and the mainstream aggregate moves to crushed stone, and the use of the slag aggregate is demanded from the viewpoint of effective utilization of resources, too. Consequently in this study, the characteristics of strength and abrasion resistance of pavement concrete with various kind of coarse aggregate were examined. In the examination, flexural, compression, tensile strength test and abrasion test were carried out for twelve kinds of pavement concrete with aggregate such as, river gravel, two kinds of hard sandstone, andesite, four kinds of limestone, three kinds of blast-furnace slag, electric arc furnace oxidizing slag. As a result, it was cleared that each strength of examined pavement concrete shows strong correlation and there is a possibility to estimate the flexural strength of pavement concrete by compression and tensile strength even if the kind of coarse aggregate were different. And it was showed that abrasion resistance of concrete and crushing value of coarse aggregate has better correlation than abrasion resistance and Los Angeles abrasion loss.

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